document.write( "Question 1203447: Determine which of the following maps f are linear:
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\n" ); document.write( "2 defined by f(x, y, z) = (x, z) \n" ); document.write( "

Algebra.Com's Answer #839023 by ikleyn(52786) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "         If it is   f: $\"R%5E3\"$ ---> $\"R%5E2\"$   defined as   f(x,y,z) = (x,z),\r
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\n" ); document.write( "\n" ); document.write( "         then it is a projection from    $\"R%5E3\"$   to the plane   (x,z).\r
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\n" ); document.write( "\n" ); document.write( "        Projection is ALWAYS a linear map.\r
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